        <%
	String userid   = (String)session.getValue("YGID");
	String username = (String)session.getValue("YGXM");
	String departcode = (String)session.getValue("BMID");
	String loginname = (String)session.getValue("DLZH");

        if  (username == null || username.equals(""))
  	{
        %>
        <script language=javascript>
          top.location.href="../../index.html";
        </script>
        <%
        }

        %>

